DRYOCALAMUS 131 



supraocular; parietals very much elongate, almost twice as 

 broad as long, touching only 1 postocular; nasal elements mu- 

 tilated but nasal apparently a single scale, elongate, the nostril 

 near the middle ; 1 loreal a little longer than high ; 2 preoculars 

 coequal in size, nearly as large as loreal and larger than post- 

 oculars ; supraoculars nearly twice as long as wide ; 3 post- 

 oculars , upper largest ; temporals 2 + 3 ; 8 temporals border- 

 ing parietals ; 9 upper labials, fourth and fifth entering eye, 

 sixth and seventh largest ; 9 lower labials, 5 touching anterior 

 chin shields, which are very much larger than second pair and 

 widely separated from each other at their upper ends ; eye 

 quite large, with pupil distinctly vertical, oval; 17 scale rows, 

 smooth, outer row not enlarged ; ventrals, 198 ; anal single ; 

 subcaudals, 122. 



Color in alcohol. — Above dark purplish brown with eighteen 

 white bands on body and fourteen on tail, each band three 

 scales wide on back and widening to four or five on side; small 

 whitish spots in temporal region and on lower edges of upper la- 

 bials ; yellowish below, of a muddy color under tail. 



Measui-ements of Stegonotxis dumeriln Boulenger. 



mm. 



Total' length 335 



Snout to vent ' 240 



Tail 95 



Remarks. — I have been able to examine only this single, very 

 young specimen of Stegonotus dumerilii. It differs from Bou- 

 lenger's description in having 3 instead of 2 postoculars, 

 and in the color and markings. However, these differences in 

 color and markings may be due to the age of the specimen. 



Boulenger lists four specimens. The ventrals and subcaudals 

 vary between 195 and 214, and 112 and 123, respectively. The 

 counts for the specimen described lie within these limits. 



Known from Samar (Boettger), Surigao (Giinther), and Da- 

 raga and the Iriga Volcano, Luzon (Peters). It is not known 

 outside the Philippines. 



Genus DRYOCALAMUS Giinther 



Nympha (non Martini) Fitzinger, Neue Class. Rept. (1826) 29. 



Lycodon, part., Schegel, Phys. Serp. 2 (1837) 104. 



Odontomiis (non Kirby) Dumeril and Bibron, Mem. Ac. Sci. 23 



(1853) 463; Erp. Gen. 7 (1854) 450; Gunther, Cat. Col. Snakes 



(1858) 206; Jan, Elenco Sist. Ofid. (1863) 95; Gunther, Rept. 



Brit. Ind. (3864) 233. 

 Dryocalamits Gunther, Cat. Col. Snakes (1858) 121; Boulenger, 



Cat. Snakes Brit. Mus. 1 (1893) 369. 



